Cockle-separator



(No Model.)

0. A. MQOOLLOM 82; M. FORDER.

GOGKLE SEPARATOR.

N0. 336,655. Patented Feb. 23, 1886. F7; Fig 2 N PETERSv Phnm-Lmw m hur. Washinglon. n. c.

UNITED STATES PATENT OFFICE.

CHARLES A. MOCOLLOM AND MILTON FORDER, OF DASSELL, MINNESOTA.

COGKLE-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 336,655, dated February 23, 1886.

Application filed March 11, 1895. Serial Nn. 159,486.

(No model.) t

To all whom it may concern.-

Be it known that we, CHARLES A. M0001:- LOM and MILTON Fonnnn, citizens of the United States, and residents of Dassell, in the county of Meeker and State of Minnesota, have invented certain new and useful Improvements in Cockle-Separators, of which the following is a specification.

Our invention relates to improvements in that class of machines in which the grain is passed between ahard-surfaced roll and a roll having a surface sufficiently soft to permit the cockle to become embedded in it and to adhere thereto, and thereby to be removed from the grain.

Our invention consists, generally, in the construction and combination of devices hereinafter described, and particularly pointed out in the claim.

In the accompanying drawings, Figure 1 is a side elevation of our cockle-separating machine. Fig. 2 is a vertical section of the same. Figs. 3 and 4 are details.

In the drawings, A is the casing of the machine, which may be of any suitable size and construction.

H represents a feed-hopper, into which the grain is fed, and from which it passes to the interior of the machine. This hopper is provided with a slide, S, by which the feed may be regulated. A riddle is arranged directly below the hopper, and upon this the grain falls as it passes from the hopper. The upper part, T, of the screen is fine, and through this the sand and small cockle pass into the discharge-passage P. The part S of the screen is coarse, and through this the mediumsized wheat and cockle pass,while the largest wheat passes over into a conductor, N. The screens S and T may be dispensed with, and all the wheat from the hopper may be passed directly between the separating-rolls. As shown, the screen is provided with a bottom, 13, which conducts the grain into the conductor leading between the rolls. The screen is also shown connected to an eccentric, E. by which an end shake is imparted to it. The conductor below'the screen leads to a pair of rolls, It and W, as shown in Fig. 2. The roll R is prefer ably of iron, has a smooth surface, and is mounted in yielding bearings M a in the sides of the casing. Su table adjusting devices are provided by which to regulate the tension of the springs in the bearings.

W is a roll having a covering, V, of basswood veneer. This material is sufficiently soft to permit the cockle-seeds to become embedded therein, and at the same time it has a long tough and elastic woody fiber. The points of the cockle-seeds become embedded between these fibers, which, owing to their toughness, do not become broken from the veneer, and owing to their elasticity the covering does not become filled with holes,as it would if a pulpy material were used for the covering.

The basswood covering is preferably se cured to the roller IV, by having its ends inserted in a groove, where they are secured by a wedge, X. The roller R is held against the roller W by the springs in the bearings with an easy yielding pressure. The cockle-seeds embedded in the basswood are removed by a brush, Y, and they pass into a suitable conductor, P. The wheat and any cockle that may pass the first roller then pass between roller R and a roller, W, similar to roller W, by which any remaining cockle will be removed.

The cockle seeds are usually sufficiently hard to become embedded in the covering of roller \V as they pass between that roller and the hard-surfaced roller. Some of the cockleseeds are so soft that instead of becoming embedded in the roller they are crushed and broken between the rollers. IVe succeed, therefore, in removing all of the large cockle, as any that is not removed bybeing embedded in and adhering to the surface of the roller is crushed, as described.

Should one or two rollers not accomplish the work of separating all the cookie, other rollers may be used in addition thereto.

In the drawings I have shown a second cluster or set, It XV W similar to those first described, and arranged below the first.

The wheat after passing the rollers may fall upon a screen, S, having an end shake imparted to it by eccentric E. The wheat passes from the machine through discharge D and the cockle through discharge D.

The veneer covering is preferably provided with the cloth backing V, to make it stronger.

All of the rollers are provided with gears meshing with each other, so that all may be driven from a drivingshaft, D", mounted in the casing.

The veneer-covered rollers are removable, being mounted in spiders L,and suitable steps secured to the opposite side of the casing which are secured to the casing and may be detached and the rollers may be removed by drawing them endwise through the side of the casing.

\Ve are aware that heretofore cookie-separating machines have been made in which the grain was passed between a hard-surfaced roll and rolls of felt, cloth,or leather, also between a hard roll and roll having a covering composed of glue and molasses, and also between a hard roll and a roll covered with cork. In

these instances the soft roll becomes filled with holes made by the ends of the cockle-seeds, audit is soon found thatthese seeds fail to adsubstantially as described, and for the puro pose set forth.

CHARLES A. MoCOLLOM. MILTON FORDER. \Vitnesses:

L. W. LEIGHTON, J. M. JOHNSON. 

